Answer:
Benzene has a boiling point of 80.1 ºC, while xylene has a boiling point of 139 ºC, indicating that benzene has a lower temperature than xylene, this means that the reaction will be carried out at a lower temperature.
High temperatures will favor creating products with higher performance since more energy is available. Instead at lower temperatures, the reaction may not continue at the same rate, so the products will form very slowly and will not form completely, resulting in poor yield.
Explanation:
Answer:
It is about 30 percent of the solar radiation that is reflected back by the clouds. Normally 24 to 25 percent of solar radiation is reflected back. The earth's surface reflects back about 4% of the solar radiation. Around 7 percent of solar radiation is scattered back to space by the particles in the atmosphere.
Answer:
The correct option is (D).
Explanation:
Uncertainty means lack of certainty in any calculations. It is the quantification of doubts after the calculations are done.
In this problem, we need to find the uncertainty in the measurement 0.0035 mg. There are 4 numbers after decimal. It means uncertain digit 1/10000 is the smallest scale division.
Hence, the uncertainty in the measurement 0.0035 mg is +0.0001 mg
Answer:
the narrator and the newsies
The SI unit of specific heat is J per gram per degree
Celsius. Thus it follows that specific heat could be calculated in this way:
Specific Heat = Energy / (mass x change in temperature)
Thus,
Specific Heat = 3.912 cal / (9.84 oz x (191.2 ˚F – 73.2 ˚F))
Specific Heat = 3.369 x 10^-3 cal/oz-˚F
