Measurement of Energy Changes: Calorimetry

Cotyledons are also called-

One mole of a non-ideal gas undergoes a change of state from $\text{(2}\text{.0}\text{atm,}\text{3}\text{.0}\text{L,}\text{100}\text{K)}$ to $\text{(4}\text{.0}\text{atm,}\text{5}\text{.0}\text{L,}\text{250}\text{K)}$ with a change in internal energy, $\mathrm{\Delta U}\hspace{0.33em}=\mathrm{\hspace{0.33em}}30.0\mathrm{\hspace{0.33em}}\mathrm{L} \mathrm{atm}$. The change in enthalpy of process (in L atm) is

What happens when we do not stir the mixture continuously in the experiment to determine the specific heat capacity of a given solid?

It takes 20 minutes to melt 10g of ice, when ray from the sun are focused by a lens of diameter 5 cm on to a block of ice. Calculate the heat received from the sun on $1\mathrm{ }\mathrm{c}{\mathrm{m}}^2$ per minute

(Given: L = 80 k cal/kg)

Water at $-{10}^{\mathrm{o}}\mathrm{C}$ is present in a thermally insulated container. Calculate the ratio of mass of ice formed and initial mass of water, if a small crystal of ice is thrown into it

The heat of reaction measured in a bomb calorimeter is:

The heat of reaction measured in a bomb calorimeter is:

The heat of reaction measured in a bomb calorimeter is:

The reaction of cyanamide ${\mathrm{N}\mathrm{H}}_2\mathrm{C}\mathrm{N}\mathrm{ }\left(\mathrm{s}\right)$ with oxygen was carried out in a bomb

caloriemeter and $\mathrm{\Delta }\mathrm{q}\mathrm{v}$ at $300\mathrm{ }\mathrm{K}$ was measured to be $-\mathrm{ }750\mathrm{ }\mathrm{k}\mathrm{J}/\mathrm{m}\mathrm{o}\mathrm{l}$. The value of $\mathrm{\Delta }\mathrm{H}$ per mole of ${\mathrm{N}\mathrm{H}}_2\mathrm{C}\mathrm{N}\mathrm{ }\left(\mathrm{s}\right)$ in the given reaction is-

In a calorimeter, the temperature of the calorimeter increases by 6.12 K, the heat capacity of the system is 1.23 kJ/g deg. What is the molar heat of decomposition for $\mathrm{N}{\mathrm{H}}_4\mathrm{N}{\mathrm{O}}_3?$

For the reaction of one mole of zinc dust with one mole of sulphuric acid in a bomb calorimeter, $∆U$ and $W$ correspond to

The amount of heat measured for a reaction in a bomb calorimeter is

The quantity of heat measured for a reaction in a bomb calorimeter is equal to

What is the amount of heat measured for a reaction in a bomb calorimeter?

What is the quantity of heat measured for a reaction in a bomb calorimeter?

The heat of combustion of benzene determined in a bomb calorimeter is $- 870 \mathrm{kcal}$ ${\mathrm{mol}}^{-1}$ at $298 \mathrm{K}$. The value of $\mathrm{\Delta E}$ for reaction is:

The heat liberated when 1.89g of benzoic acid is burnt in a bomb calorimeter at $25^{\circ }\text{C}$ increases the temperature of 18.94 kg of water by $0·632^{\circ }\text{C}$ . If the specific heat of water at $25^{\circ }\text{C}$ 0.998 cal g^-1 deg^-1, the value of heat of combustion of benzoic acid is :