AIPMT 2003 | Thermodynamics Question 67 | Chemistry

AIPMT 2003

MCQ (Single Correct Answer)

-1

For the reaction,
C₃H_8(g) + 5O_2(g) $$ \to $$ 3CO₂(g) + 4H₂O_(l)
at constant temperature, $$\Delta $$H $$-$$ $$\Delta $$E is

+ RT

$$-$$3RT

+ 3RT

$$-$$ RT

AIPMT 2002

MCQ (Single Correct Answer)

-1

2 mole of ideal gas at 27^oC temperature is expanded reversibly from 2 lit. to 20 lit. Find entropy change. (R = 2 cal/mol K)

92.1

9.2

AIPMT 2002

MCQ (Single Correct Answer)

-1

Heat of combustion $$\Delta $$H^o for C_(s), H_2(g) and CH_4(g) are $$-$$ 94, $$-$$ 68 and $$-$$213 kcal/mol, then $$\Delta $$H^o for C_(s) + 2H_2(g) $$ \to $$ CH_4(g) is

$$-$$17 kcal

$$-$$111 kcal

$$-$$170 kcal

$$-$$85 kcal

AIPMT 2002

MCQ (Single Correct Answer)

-1

In a closed insulated container a liquid is stirred with a paddle to increase the temperature which of the following is true ?

$$\Delta $$E = W $$ \ne $$ 0, q = 0

$$\Delta $$E = w = q $$ \ne $$ 0

$$\Delta $$E = 0, W = q $$ \ne $$ 0

W = 0, $$\Delta $$E = q $$ \ne $$ 0.

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