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likoan [24]
3 years ago
13

Heat transfer between two substances is affected by specific heat and the chemical composition of the substances. state of matte

r of the substances at room temperature. thermal equilibrium of the substances. amount of time and area of physical contact between the substances.
Chemistry
2 answers:
lesya [120]3 years ago
7 0

Answer:

the answer is D

Explanation:

zlopas [31]3 years ago
5 0

Answer:

D. Amount of time and area of physical contact between the substances

Explanation:

This is because with a greater surface area and more physical contact heat transfer can be transferred more quickly

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True

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Which of the following is made up of particles of matter?
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8 0
2 years ago
A mixture of water and graphite is heated to 600 k in a 1 l container. when the system comes to equilibrium it contains 0.15 mol
Lunna [17]
(missing in Q) : Calculate the concentration of CO & H2 & H2O when the system returns the equilibrium???

when the reaction equation is:

C(s) + H2O(g)  ↔ H2(g) + CO(g) 

∴ Kc = [H2] [CO] / [H2O]

and we have Kc = 0.0393 (given missing in the question)

when the O2 is added so, the reaction will be:

2H2(g) + O2(g) → 2H2O(g)

that means that 0.15 mol H2 gives 0.15 mol of H2O

∴ by using ICE table:

            [H2O]          [H2]        [CO]

initial 0.57 + 0.15      0               0.15

change  -X                +X              +X

Equ   (0.72-X)             X            (0.15+X)

by substitution:

0.0393 = X (0.15+X) / (0.72-X)  by solving for X

∴ X = 0.098 

∴[H2] = X = 0.098 M

∴[CO] = 0.15 + X
 
           = 0.15 + 0.098 = 0.248 M

∴[H2O] = 0.72 - X

             = 0.72 - 0.098

             = 0.622 M


8 0
3 years ago
How many grams is 2.3 mol of li
Paha777 [63]

15.9643 gramns are in 2.3 moles of lithium

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