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Amorphous solids are ...

A hypothetical reaction, A→2B, proceeds through the following steps A→C ; ΔH=q1 C→D ; ΔH=q2 (1/2)D→B ; ΔH=q3 The heat of reaction is : ...

The enthalpies of formation of N2O & NO are 82 & 90 kJ/mole respectively. The enthalpy of the reaction 2N2O(g)+O2(g)→4NO(g) is equal to ...

The enthalpy of dissolution of BaCl2(s) and BaCl2.2H2O(s) are -30 kJ/mol and 10 kJ/mol respectively. The enthalpy of hydration for BaCl2(s)+2H2O→BaCl2.2H2O(s) is ...

The amount of energy released when 20 ml of 0.5 M NaOH are mixed with 100 ml of 0.1 M HCl is z kJ. The heat of neutralization in kJ/mol is ...

Given C(s)+O2(g)→CO2 ; ΔH=-395 kJ S(s)+O2(g)→SO2 ; ΔH=-295 kJ CS2(l)+3O2(g)→CO2+SO2 ; ΔH=-1110 kJ The heat of formation of CS2(l) is ...

The heat of formation of CO & CO2 are -26.4 kcal & -94.6 kcal respectively. Heat of combustion of carbon monoxide will be ...

When ammonium chloride is dissolved in water, the solution becomes cold. The change is ...

the correct relationship between ΔH & ΔE for an ideal gas at const. temp. is ...

In the reaction C(s)+O2(g)→CO2(g)+83.4 kcal ...

Under which of the following condition, work is a state function? ...

The first law of thermodynamics states that ...

find the change in internal energy of one mol ideal diatomic gas for an adiabetic process whose initial and final temperature are 300 K & 400 K respectively. ...

For an isothermal process(300 K), one mol of ideal gas expands from 1 L to 10 L. Find the heat evolved from the system ...

Find the change in internal energy of the system for an isochoric process given heat supplied to the system is 45 kJ ...

given work done by the system is 100 kJ and heat supplied to the system is 300 kJ, find the change in internal energy ...

Work done in an isothermal process (300 K) where 1 mol of gas compresses from 10 L to 1 L is ...

In an isothermal expansion of an ideal gas, the total change in internal energy ...

two states of system are given as P1=1 atm, V1=10L, T1=300K & P2=2 atm, V1=10L, T1=600K. find the work done by the system ...

two states of system are given as P1=1 atm, V1=10L, T1=300K & P2=2 atm, V1=20L, T1=1200K. find the heat given to the system ...

Internal energy of an ideal gas depends only upon ...

The change in internal energy of a system depends on ...

30 g of Magnesium & 30 g of oxygen are reacted, then the residual mixture contains ...

13 L of H2 & 12 L of Cl2 are mixed and exploded. The composition by volume of the mixture is ...

If 3 moles of oxygen combine with Al to form Al2O3, the weight of Al used in the reaction is ...

10 cc of CO2 are passed over red hot cake. The volume of CO evolved is ...

how much Al2O3 is produced from 108 g of Al. ...

What quantity of lime stone (CaCO3) on heating will give 28 kg of CaO? ...

In a hydrocarbon, the mass ratio of hydrogen to carbon is 1:3. The empirical formula of the hydrocarbon is ...

A compound contains 37% N & 63% O, the formula of the compound is ...