Aslice of pizza has 500 kcal. if we could burn the pizza anduse all the heat to warm a 50-l container of cold water, what wouldbe the approximate increase in the temperature of the water? (note: a liter of cold water weighs about 1 kg.)
a. 50°c
b. 5°c
c. 10°c
d. 100°c
e. 1°c

c. 10°C

Explanation:

Given that: A slice of pizza has 500 kcal.

That is to say Q = 500kcal

If the pizza was burned and all the heat were used to warm a 50-L container of cold water,

what  would be the approximate increase in the temperature of the water?

We were also being told to note that; A liter of cold water weighs about 1 kg.

i.e 50-L container weighs about 50kg (mass)

∴ Since;

Q= 500kcal,

m = 50kg; &

the specific heact (c) = 1

we can find the approximate increase in the temperature of the water by using the formula:

Q = mcΔT

ΔT =

ΔT =

ΔT = 10°C

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.

i need