# At constant pressure, which of these systems do work on the surroundings? check all that apply.

At constant pressure, which of these systems do work on the surroundings? check all that apply.

a. 2A(g)+3B(g) –> 4C(g)

b. A(s)+B(g) –> 2C(g)

c. A(g)+B(g) –> 3C(g)

d. A(s)+2B(g) –> C(g)

To calculate work, we use the equation:

w=ΔngRT

We must find the value for Δng

in each of the reactions in order to figure out if work will be positive or negative. REMEMBER: If work done is negative, this implies that the ongoing work is performed BY the machine on the environment. Negative work reactions will be our answer.

We should calculate Δng
in each response. This represents the noticeable change in the number of moles of the reaction.

https://en.wikipedia.org/wiki/Pressure

Related Searches:
a sample of gas occupies a volume of
what is the final volume of the gas
a gas forming reaction produces
work on surroundings positive or negative
which of the following statements are true?
for each of the following reactions at constant pressure determine whether the system does work
at constant temperature and pressure in which of these changes is work done by the system
how much work must be done on a system to decrease its volume from
how to tell if a system does work on its surroundings
at constant pressure in which of the reactions is work done by the system on the surroundings
in which of the following reaction is work done by the system to the surroundings
a sample of gas occupies a volume of
what is the final volume of the gas