Agas is confined to a cylinder under constant atmospheric pressure, as illustrated in the following figure. when the gas undergoes a particular chemical reaction, it absorbs 829j of heat from its surroundings and has 0.69kj of p−v work done on it by its surroundings. what is the value of δh for this process?

The value of ΔH for this process is 2209 Joules.

Explanation:

Work done on the system by its surroundings,W == 0.69 kJ = 690 J

Heat added or absorbed by the system,Q = 829 J

According to first law of thermodynamics:

The of the process is given by:

The value of ΔH for this process is 2209 Joules.

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diagram is missing, but i will try to explain your doubt.

answer:

amplitude is the maximum displacement or distance moved on a point of a vibrating body or wave measured from its equilibrium position.it is equal to half the length of vibration path.