Latent Heats: If you add 1.33 MJ of heat to 500 g of water at 50°C in a sealed container, what is the final temperature of the steam? The latent heat of vaporization of water is 22.6 × 105 J/kg, the specific heat of steam is 2010 J/kg ? K, and the specific heat of water is 4186 J/kg ? K.
A. 100°C
B. 112°C
C. 123°C
D. 147°C
E. 195°C
Answer: E
You might also like to view...
What is the primary way in which we determine the mass distribution of a spiral galaxy?
A) We construct its rotation curve by measuring Doppler shifts from gas clouds at different distances from the galaxy's center. B) We calculate its mass-to-light ratio. C) We apply Newton's version of Kepler's third law to the orbits of globular clusters in the galaxy's halo. D) We count the number of stars we can see at different distances from the galaxy's center.
Venus can be seen during daytime when it is near greatest brilliancy
Indicate whether the statement is true or false
What is the maximum number of eclipses that can occur in a year?
A. 7 (four solar and three lunar) B. 4 (two solar and two lunar) C. 2 (one solar and one lunar) D. 7 (five solar and two lunar) or 7 (four solar and three lunar) E. 7 (five solar and two lunar)
A spherical mirror has a radius of curvature of 22 cm. If the mirror is convex, its focal length is
A) -11 cm. B) -44 cm. C) 22 cm. D) 11 cm. E) -22 cm.