An ideal gas initially at 20°C and 202 kPa has a volume of 4.50 L. It undergoes a quasi-static, isothermal expansion until its pressure is reduced to 84 kPa. (a) Find the work done by the gas. J (b) Find the heat added to the gas during the expansion.

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explanation:

answer: what are you talking about?

explanation:

beta is electron from nucleus

something from nucleus has changed, but charge must be same for cons of charge