Chemical Thermodynamics-First Law of Thermodynamics (KVPY Stream SB-SX (Class 12 & 1st Year BSC) Chemistry): Questions 1 - 4 of 11

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Question number: 1

» Chemical Thermodynamics » First Law of Thermodynamics » Heat Internal Energy

Appeared in Year: 2013

MCQ▾

Question

For the isothermal reversible explanation of an ideal gap:

Choices

Choice (4) Response

a.

H=0andU>0

b.

H>0andU=0

c.

H=0andU=0

d.

H>0andU<0

Question number: 2

» Chemical Thermodynamics » First Law of Thermodynamics » Heat Capacity

MCQ▾

Question

The heat capacity of 10 mole of an ideal gas at certain temperature is 3000 J/K- mole at constant pressure the heat capacity of the same gas at the same temperature and constant volume is –

Choices

Choice (4) Response

a.

214 J/K – mole

b.

383 J/K- mole

c.

308.3 J/K-mole

d.

291.7 J/K-mole

Question number: 3

» Chemical Thermodynamics » First Law of Thermodynamics » Work

MCQ▾

Question

A system has internal energy equal to E1,450J of heat is taken out of it and 600J of work is done on it. The final internal energy of the system will be

Choices

Choice (4) Response

a.

(E1150)

b.

(E1+1050)

c.

(E1+150)

d.

(E11050)

Question number: 4

» Chemical Thermodynamics » First Law of Thermodynamics » Enthalpy

MCQ▾

Question

For the reaction; H2(g)+12O2(g)H2O(l).

Cp=7.63caldegree1;H25°C=68.3Kcal, what will be the value (inKcal) of Hat100°C?

Choices

Choice (4) Response

a.

6887kcal

b.

688.7kcal

c.

68.87kcal

d.

6.887kcal

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