Which among the following is true for the reactions involving only solids or liquids?

$A$ gas expands from a volume of $1 \ m^{3}$ to a volume of $2 \ m^{3}$ against an external pressure of $10^{5} \ Nm^{-2}$. The work done by the gas will be

Consider the following reaction:
$CO_{(g)} + 1/2 O_{2_{(g)}} \to CO_{2_{(g)}}$
How are $\Delta E$ and $\Delta H$ related for the reaction?

Fill in the blanks:
$(i)$ $1 \ \text{calorie} = \ldots \ldots \ \text{joules}$
$(ii)$ The work done by the system can be calculated by the equation .......

Fill in the blanks:
$(i)$ The change in heat energy during a chemical reaction at constant volume is called .......
$(ii)$ During a ....... process,there is no absorption or evolution of heat.
$(iii)$ The equation $\Delta G = \Delta H - T \Delta S$ was proposed by .......

The pressure of a gas is $100 \ kPa$. If it is compressed from $1 \ m^{3}$ to $10 \ dm^{3}$,find the work done. (in $J$)