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professor190 [17]
3 years ago
8

Which is an example of heat energy being transferred by radiation? * 10 points A A pot of water boils on a stove B Hot water mel

ts an ice cube C Metal gets hot after being in the sun D Warm water rises to the top of the ocean
Chemistry
1 answer:
andrew11 [14]3 years ago
5 0

Answer:

A

Explanation:

The stove is a form of gas, you feel the heat of the fire via radiation. CONVECTION. Heat transfer in fluids generally takes place via convection.

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A chemical reaction was carried out by mixing 25 g of pure CaCO3 and 0.75 mole of pure HCl to give CaCl2, H2O and CO2. a. Which
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Cyclopropene decomposes to propene when heated to 500 C, calculate rate constant for the first order reaction 0 min 1.48 mmol/L
Dmitry_Shevchenko [17]

Answer:

k = 0.0306 min-1

Explanation:

The table is given as;

Time, Concentration

0 1.48

5 1.27

10 0.98

15 0.84

The integrated rate law for a first order reaction is given as;

ln [A] = -kt + ln [Ao]

where;

[A] = Final Concentration

[Ao] = Initial Concentration

k = rate constant

t = time

In the table, taking the first two sets of values;

t = 5

k = ?

[Ao]  = 1.48

[A] = 1.27

Inserting into the equation;

ln(1.27) = - k (5) + ln(1.48)

ln(1.27)  - ln(1.48) = -5k

-0.1530 = -5k

k = -0.1530 / -5

k = 0.0306 min-1

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What is the theory that can explain the model of Pangaea?
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According to Pascal's principle, how does pressure from a hand squeezing a ketchup bottle move throughout the ketchup?
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3 0
3 years ago
Read 2 more answers
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