1
MHT CET 2021 22th September Morning Shift
+1
-0

Enthalpy of formation of methane is $$-$$75 kJ/mol. What is the enthalpy change for formation of 24 g of methane?

A
$$-$$112.5 kJ
B
$$-$$75 kJ
C
$$-$$150 kJ
D
$$-$$130 kJ
2
MHT CET 2021 22th September Morning Shift
+1
-0

The expansion of gas having no opposing force is called as

A
free expansion
B
reversible expansion
C
D
isothermal expansion
3
MHT CET 2021 22th September Morning Shift
+1
-0

1 mole of an ideal gas expands isothermally and reversibly by decreasing pressure form $$210 \mathrm{~kPa}$$ to $$105 \mathrm{~kPa}$$ at $$300 \mathrm{~K}$$. What is the work done? $$\left(\mathrm{R}=8.314 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}\right)$$

A
$$1960 \mathrm{~J}$$
B
$$864 \mathrm{~J}$$
C
$$1296 \mathrm{~J}$$
D
$$1729 \mathrm{~J}$$
4
MHT CET 2021 21th September Evening Shift
+1
-0

When 1 mole of gas is heated at constant volume, the temperature rises form $$273 \mathrm{~K}$$ to $$546 \mathrm{~K}$$. If heat supplied to the gas is $$\mathrm{x~J}$$, then find the correct statement from following.

A
$$Q=\Delta U=x J, W=0$$
B
$$\mathrm{Q}=\mathrm{W}=\mathrm{x} \mathrm{J}, \Delta \mathrm{V}=0$$
C
$$\Delta V=0, Q=W=-x J$$
D
$$\mathrm{Q}=-\mathrm{W}=\mathrm{x} J, \Delta \mathrm{V}=0$$
EXAM MAP
Medical
NEET