When cooking food in boiling water, at a high altitudes where pressure is low: A
ID: 1293308 • Letter: W
Question
When cooking food in boiling water, at a high altitudes where pressure is low:
A)this will go faster because it is easier to get the water to boil.
B)this will go faster, because the temperature of the boiling water is higher
C)this will go more slowly, because it is more difficult to get water to boil
D)this will go more slowly, because the temperature of the boiling water is lower
E)there will be no difference from low altitude cooking once the boiling has started
2) consider a gas. in a certain process, its volume is doubled its pressure is doubled and its temperature is doubled. this implies:
A)a violation of the ideal gas law
B) that the number of gas molecules must increase
C)that the number of gas molecules must decrease
D)that the number of gas molecules must be held constant
E)none of these
3)A folksy paraphrase of the first law of thermodynamics is:
A) dont buy a pig in a poke
B)three stikes and you;re out
C)you can;t get something for nothing
D)you don't even get all that you pay for
E)early to bed and early to rise makes a man healthy wealthy and wise
4)Making French toast on a grill and ordinary toast in a toaster are examples of
A)heat transsfer conduction
B)heat transfer by convection
C)heat transfer by radiation and conduction respectively
D)heat transfer by conduction and radiation respectively
E)heat transfer by convection and radiation respectively
5)a temperature CHANGE of 90 degrees on the celsius scale is equal to a change of
A)50 degrees on the kelvin scale
B)90 degrees on the Kelvin scale
C)183 degrees on the Kelvin scale
D)363 degrees on the Kelvin scale
E)none
6)Why don't hailstones always melt as a result of the gravitaional potential energy that they lose while falling?
A)They Do. This is called Rain
B)THeir motion through the air is at terminal velocity
C)The laten heat of fusion is large in relation to the potential energy changes
D)the laten heat of fusion is small in relation to the potential energy changes
E)the laten heat of fusion is smaller than laten heat of vaporization for water
Explanation / Answer
1.D)this will go more slowly, because the temperature of the boiling water is lower
2.B) that the number of gas molecules must increase
3.C)you can;t get something for nothing
4.C)heat transfer by radiation and conduction respectively
5.D)363 degrees on the Kelvin scale
6.B)THeir motion through the air is at terminal velocity
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