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given work done by the system is 100 kJ and heat supplied to the system is 300 kJ, find the change in internal energy ...
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Work done in an isothermal process (300 K) where 1 mol of gas compresses from 10 L to 1 L is ...
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In an isothermal expansion of an ideal gas, the total change in internal energy ...
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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 ...
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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 ...
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Internal energy of an ideal gas depends only upon ...
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The change in internal energy of a system depends on ...
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30 g of Magnesium & 30 g of oxygen are reacted, then the residual mixture contains ...
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13 L of H2 & 12 L of Cl2 are mixed and exploded. The composition by volume of the mixture is ...
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If 3 moles of oxygen combine with Al to form Al2O3, the weight of Al used in the reaction is ...
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10 cc of CO2 are passed over red hot cake. The volume of CO evolved is ...
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how much Al2O3 is produced from 108 g of Al. ...
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What quantity of lime stone (CaCO3) on heating will give 28 kg of CaO? ...
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In a hydrocarbon, the mass ratio of hydrogen to carbon is 1:3. The empirical formula of the hydrocarbon is ...
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A compound contains 37% N & 63% O, the formula of the compound is ...
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The % of N in urea is about ...
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The simplest formula of a compound containing 50% of element X(atomic mass 10) and 50% of element Y(atomic mass 20) ...
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280 ml of sulphur vapour at STP weighs 3.2 g. The molecular formula of sulphur is ...
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A compound contains 74% oxygen & 26% nitrogen by weight. find the formula which has min. molecular weight ...
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A gas is found to have molecular formula N2Ox. If its vapour density is 54, find x ...
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The no. of molecules in 4.25 g of NH3 is approximately ...
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Which has maximum molecules? ...
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The no. of moles in SO2Cl2 in 13.5 g is ...
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11.2 litres of a gas at STP are found to have a mass of 16 g. The molecular mass of the gas is ...
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The activation energy for a simple chemical reaction A→B is Ea in forward direction. The activation energy for the reverse reaction is ...
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The activation energy of a reaction is zero. The rate constant of the reaction ...
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lnk is plotted against 1/T, and the slope is ...
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A first order reaction is 50% complete in 30 minutes at 27°C and in 10 minutes at 47°C. The energy of activation of the reaction is ...
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The rate constant of the reaction increases because of ...
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given t1/2 of a reaction of order one is 10 s, find the time taken for 99.9% completion of reaction ...