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what can be said about a reaction with h = 620 kj/mol and s = -0.46 kj/(molk)?

a. it is spontaneous above 1347 k.
b. it is always spontaneous.
c. it is spontaneous at 298 k.
d. it is never spontaneous.

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.