A flexible balloon contains 0.355 molmol of an unknown polyatomic gas. Initially the balloon containing the gas has a volume of 7400 cm3cm3 and a temperature of 30.0 ∘C∘C. The gas first expands isobarically until the volume doubles. Then it expands adiabatically until the temperature returns to its initial value. Assume that the gas may be treated as an ideal gas with Cp=33.26J/mol⋅KCp=33.26J/mol⋅K and γ=4/3γ=4/3. A) What is the total heat Q supplied to the gas in the process?
Q = J
B) What is the total change in the internal energy ΔU of the gas?
ΔU= J
C) What is the total work W done by the gas?
W = J
D) What is the final volume V?
V = m3

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

Heat is the total potential energy of a substance that can be transferred. true false

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate