Determine the heat capacity (in calories/C) of a lake containing ...

[@Brianna17]

Determine the heat capacity (in calories/C) of a lake containing one million gallons (approximately 4 million kilograms) of water at 15C.
 a. 4  106
  b. 4  109
  c. 4  103
  d. 1  103
  e. 4  102

Question 2

During the volcanic eruption of Mt. Pelee in 1902, an incredibly hot burning cloud rolled down the mountain and incinerated the town of Saint-Pierre. From the damage done, the temperature in the cloud was estimated at 700C. If the air temperature was 20C and a mole of air is 29 grams, estimate the molecular weight of the gas in the burning cloud that made it heavier than the surrounding air. (As a follow-on, estimate the most probable composition of the cloud. Some typical volcanic gases are H2S, SO2, H2SO4, CO2, NO.)

[Sarahjh]

Answer to Question 1

b

Answer to Question 2

96, H2SO4 (sulfuric acid)

[@Brianna17]

Gracias!

[Animal_Goddess]

Wow, this really help