1
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
In a closed insulated container a liquid is stirred with a paddle to increase the temperature which of the following is true ?
A
$$\Delta $$E = W $$ \ne $$ 0, q = 0
B
$$\Delta $$E = w = q $$ \ne $$ 0
C
$$\Delta $$E = 0, W = q $$ \ne $$ 0
D
W = 0, $$\Delta $$E = q $$ \ne $$ 0.
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Heat of combustion $$\Delta $$Ho for C(s), H2(g) and CH4(g) are $$-$$ 94, $$-$$ 68 and $$-$$213 kcal/mol, then $$\Delta $$Ho for C(s) + 2H2(g) $$ \to $$ CH4(g) is
A
$$-$$17 kcal
B
$$-$$111 kcal
C
$$-$$170 kcal
D
$$-$$85 kcal
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
2 mole of ideal gas at 27oC temperature is expanded reversibly from 2 lit. to 20 lit. Find entropy change. (R = 2 cal/mol K)
A
92.1
B
0
C
4
D
9.2
4
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Solubility of MX2 type electrolytes is 0.5 $$ \times $$ 10$$-$$4 mole/lit., then find out Ksp of electrolytes.
A
5 $$ \times $$ 10$$-$$12
B
25 $$ \times $$ 10$$-$$10
C
1 $$ \times $$ 10$$-$$13
D
5 $$ \times $$ 10$$-$$13
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