The energy released by a certain reaction is enough to totally evaporate 125 kg of water at its boiling point. How much mass was lost during this reaction?
(LF = 334,000 J/kg for water, c = 3.00 × 108 m/s)
4.64 × 10-10 kg
Physics & Space Science
You might also like to view...
Two nonzero vectors have unequal magnitudes of X and Y. Which of the following could be the length of their sum?
(i) 0 (ii) X+Y (iii) X (iv) Y
1.(ii) only 2.Any of them could be the length of the sum. 3.(i), (iii), and (iv) 4.(ii), (iii), and (iv)
Physics & Space Science
Which of the following materials is most likely to act as a reducing agent?
A) Na B) Na+ C) Cl2 D) Cl- E) both A and B
Physics & Space Science
The energy that stirs the circulation in Jupiter's atmosphere comes from ________.
A. the tidal force of the Galilean moons B. the planet's magnetic field C. the planet's interior D. the Sun
Physics & Space Science
Molecular Speeds: If the temperature of an ideal gas is increased from 20°C to 40°C, by what percent does the speed of the molecules increase?
A. 3% B. 30% C. 70% D. 100%
Physics & Space Science