Recently Active Thermal Physics Questions

the ratio of avrage translational KE to rotational KE of a linear polyatomic molecule at temprature T is 1. 3 2. 5 3. 1.5 4. 1.2 ...

Q1. The specific heat capacity of a monoatomic gas for the process TV2=constant is (where R is gas constant) (a) R/2 (b) 2R (c) R/3 (d) R/4 ...

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An ideal gas whose adiabatic exponent equals γ is expanded so that amount of heat transferred to gas equals derease in internal energy.Find eqn of process ...

1 metre long tube, closed at both ends, is lying horizontally. A mercury column of length 0.1 m is filled in its middle and in the rest two parts air is filled at atmospheric pressure. What will be the displacement of the mer ...

1. 7 rods A,B,C,D,E,F,G are joined in the form of 2 adjacent rectangles with F as the common side. Rectangle AECF and BGDF(Clockwise).All rods have equal cross sectional area A and equal length l.The thermal conductivities of ...

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STATEMENT 1: A cylinder fitted with a movable piston contains a certain amount of liquid in equilibrium with its vapour. The temperature of the system is kept constant. If the volume of the vapour is decreased by moving the p ...

An empty pressure cooker (Volume=10 lts) contains air at atm. pressure 105 Pa at a Temp. of 270C. It contains a whistle with area 0.1cm2 & mass=100gm. What should be the Temperature of air inside so tht the whistle is just li ...

*Image* 12 identical rods made of same material are arranged in form of a cube. The temp. of P & Qare maintained at 90 C & 30 C resp. The temp. of V , in steady state is? ...

Question. Two steel rods & an aluminium rod of equal length l0 and equal cross-section are joined rigidly at their ends as shown in the figure. ______________________________________ |______________________________________| & ...

A point source S of light is emitting power P.A sphere of radius r is situated at distance R from source S (R>>>r),has mass M ans specific heat capacity C. Find the time in which temperature of sphere rises by θ°C ...

A solid body X of heat capacity C is kept in a an atmosphere whose temperature is TA = 300 K. At time t = 0, the temperature of X is T0 = 400 K. It cools according to Newton’s law of cooling. At time t1 its temperature is f ...

Is it easy to melt one cube of ice in isolation or a few cubes placed in contact with each other?? ...

NCERT chemistry: First law of thermodynamics: In general: ΔU=q+w ------------------(1) ΔU change in internal energy,q-heat transferd,w-work done by or on the system NCERTphysics: ΔQ=ΔU+ΔW --------------(2) ΔQ- heat supp ...

A. P-V diagram of a monoatomic gas is a straight line passing through origin. The molar heat capacity of the gas in the process will be 1. 3R/2 2. R/2 3. 2R 4. 3R B. For a gas , molar specific heat in a process is greater tha ...

Three rods of same material AB,BC,CA of equal length and their area of cross-section in the ratio 1:2:4 respectively have been arranged in the form of an equilateral triangle.If A and C are maintained at diff. temperatures,th ...

A copper and a tungsten plate having a thickness of 2 mm each are riveted together at 00C to form a bimetallic strip. Find the average radius of curvature of this plate at 2000C The coefficients of linear expansion for copper ...

a gas is cotained in a metallic cylinder fitted with a psiton. the piston is suddenly compressesd and is maintianed at this postion as time passses the pressure of the gas inside the cyliner increaese decrease remains the sam ...

A uniform pressure P is exerted to all the sides of a solid cube at temperature T°C.By what amount should the temperature of the cube be raised in order to bring its volume back to the volume it had before pressure was appli ...

A gas undergoes a process in which its pressure p and volume V are relates as pVn = constant, where n is a constant and denotes the ratio Cp/CV. The molar heat capacity for the gas in this process will be zero if the value of ...

Ques1) Rubber has a negative average coefficient of linear expansion. What happens to the size of a piece of rubber as it iswarmed? Ques2) An inflated rubber balloon filled with air is immersed in a flask of liquid nitrogen t ...

Multiple Option correct 1 mole of a monoatomic gas undergoes a thermodynamic proces such that V^3=kT^2 where 'k' is a const.- and the other symbols bear the usual meanings. 1) Work done by the gas is 200R when temp is raised ...

If a gas is heated at constant pressure,the isothermal compressiblity a) remains constant b) increases linearly c) decreases linearly with temperature d) decreases inversely with temperature ...

A hot body placed in air is cooled down according to newton's law. The rate of decrease of temperature being K times the temperature difference from the surrounding. Starting from t=0, find the time in which the body will los ...

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for a certain process... C=Cv+R/2,then the process can be represented as PaVbTc=k(a constant) the values of a,b and c are_____ ...

Can you please explain what is steady state with regard to heat transfer through a metal slab?How actually the temperature of different cross-sections become constant with respect to time? ...

Column I Column II (A) Work (p) ML2T-2 (B) Torque (q) N-m (C) Energy (Mechanical) (r) cal (D) Thermal energy (s) kgm2/s2 (t) Joule ...

hey guys can u explain this line which is from HCV...transfer of heat..the blackbody radiation part.... the radiations emmited inside a contained maintained at constant temperature r black body radiations.. ...