Latent Heats: If you add 700 kJ of heat to 700 g of water originally at 70.0°C, how much water is left in the container? The latent heat of vaporization of water is 22.6 × 105 J/kg, and its specific heat capacity is 4186 J/kg ? K.
A. 429 g
B. 258 g
C. 340 g
D. 600 g
E. none
Answer: A
You might also like to view...
The first stars formed in the Universe were composed of 90% hydrogen, 10% helium, and very little else
a. True b. False Indicate whether the statement is true or false
The charge per unit length on an insulator is 6.2 ?C/m. On a 2.0-m length of this material, what is the difference in the number of electrons and the number of protons?
a. There are 7.8 × 10^13 more electrons than protons. b. There are 7.8 × 10^13 more protons than electrons. c. There are 3.9 × 10^13 more protons than electrons. d. There are 3.9 × 10^13 more electrons than protons.
Once oxygen started to be manufactured by cyanobacteria, why did it take so long to build up to significant levels?
A) initially most of the oxygen escaped into space B) oxidation of surface rock and ocean minerals occurred C) initially most of the oxygen produced dissolved in the oceans D) initially most of the oxygen was converted into water by reaction with hydrogen
When Lillian hangs from a pair of gym rings, the upward support forces by the rings will always
A) each be half her weight. B) each be equal to her weight. C) add up to equal her weight. D) add up to more than her weight.