Question

Determime the change in the internal energy of the water in joules

Answer 1

The change in the internal energy of the water in joules

The system has constant volume (V=0) the term -PV=0 and work are equal to zero.

Thus, in the equation U=q+w, w=0 and U=q.

The internal energy is equal to the heat of the system.

The environmental heat increase, the heat has to decrease, heat not to be created nor be destroyed.

The heat maximum capacity of a material is the energy to raise one kilogram (kg) of the material by 1 degree Celsius (°C).

The  heat of water capacity is 4200 $-\frac{J}{k g^{\circ} C}$ (joules per kilogram per degree Celsius)  Water of 1 kg to raise the temperature , 4,200 J   by 1 $^{\circ} C$ .

Specific 'heat capacity' of water - 4190 $J k g^{-1} K^{-1}$

The internal energy of a system is the energy contained within the system.

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Answer 2

The change in the internal energy of the water in joules

The system has a constant volume (V=0) the term $-PV=0$ and work are equal to zero.

Thus, in the equation $U=q+w, w=0$ and $U=q$.

The internal energy is equal to the heat of the system.

The environmental heat increase, the heat has to decrease, heat not to be created nor be destroyed.

The heat maximum capacity of a material is the energy to raise one kilogram (kg) of the material by 1 degree Celsius (°C).

The heat of water capacity is $4200$  (joules per kilogram per degree Celsius)  Water of 1 kg raises the temperature, $4,200 J$   by 1.

Specific 'heat capacity of water $- 4190Jkg^{-1}K^{-1}$

The internal energy of a system is the energy contained within the system.

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