1. How much energy (in kilojoules) is required to heat up 16.6 kg of water from 11.7 oC to 24.5 oC? 2.What is the latent
Posted: Wed Jul 06, 2022 10:12 am
1. How much energy (in kilojoules) is required to heat up 16.6kg of water from 11.7 oC to 24.5 oC?
2.What is the latent heat (in kilojoules) required to evaporate16.9 kg of water at 9.1 oC?
3. At 23,690 years after an organism’s death, what fraction ofits radiocarbon remains? t_1/2 for C-14 is 5730 years and the decayconstant k is 0.0001216.
4. The Earth’s average surface temperate is 13.8 oC. If Earth’saverage surface temperature increases by 0.7 oC, then how muchwould Earth’s emitted radiation increase by (Wm-2)?
5. The pre-industrial mixing ratio of methane is 700 ppb. If thenumber concentration of air is 2.6 x 1019 molecules / cm3, thenwhat is the number concentration of methane?
6. What is the angle between the equator and the incoming solarradiation on March 24th (julian day = 83)?
7.An ocean water sample has an oxygen isotope ratio (18O/16O) of0.0020032. Assume the measurement standard has an isotope ratio of0.0020052. What is the δ value of this sample?
8. Observations show that the northern hemisphere has warmedabout 0.5 oC more than the southern hemisphere since 1970. What isa good explanation for this?
A)The northern hemisphere has more clouds which act as a blanketto warm the surface
B)There is more land in the northern hemisphere and land has asmaller specific heat capacity than water
C)The southern hemisphere has more air circulation which coolsthe surface
D)There is more land in the northern hemisphere and land has alarger specific heat capacity than water
2.What is the latent heat (in kilojoules) required to evaporate16.9 kg of water at 9.1 oC?
3. At 23,690 years after an organism’s death, what fraction ofits radiocarbon remains? t_1/2 for C-14 is 5730 years and the decayconstant k is 0.0001216.
4. The Earth’s average surface temperate is 13.8 oC. If Earth’saverage surface temperature increases by 0.7 oC, then how muchwould Earth’s emitted radiation increase by (Wm-2)?
5. The pre-industrial mixing ratio of methane is 700 ppb. If thenumber concentration of air is 2.6 x 1019 molecules / cm3, thenwhat is the number concentration of methane?
6. What is the angle between the equator and the incoming solarradiation on March 24th (julian day = 83)?
7.An ocean water sample has an oxygen isotope ratio (18O/16O) of0.0020032. Assume the measurement standard has an isotope ratio of0.0020052. What is the δ value of this sample?
8. Observations show that the northern hemisphere has warmedabout 0.5 oC more than the southern hemisphere since 1970. What isa good explanation for this?
A)The northern hemisphere has more clouds which act as a blanketto warm the surface
B)There is more land in the northern hemisphere and land has asmaller specific heat capacity than water
C)The southern hemisphere has more air circulation which coolsthe surface
D)There is more land in the northern hemisphere and land has alarger specific heat capacity than water