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3 years ago

7

What is the relationship between Celsius scale and Kelvin scale of temperature ? very sort answer

1 answer:

inna [77]3 years ago

5 0

Answer:

Celsius + 273 = Kelvin

Explanation:

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A scientist has two solutions, which she has labeled solution a and solution

klio [65]

Let's make ;
A = ounces solution A
B = ounces solution B

total number of ounces:
A + B = 120

concentration:
0.65A + 0.80B = 0.7(120)

Substitute A for 120 - B in the second equation to combine them.

0.65(120 - B) + 0.80B = 84
78 - 0.65B + 0.80B = 84
0.15B = 84 - 78
0.15B = 6
B = 6/0.15

B = 40 ounces
Then... A = 120 - 40
A = 60 ounces

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4 years ago

A sample of hydrogen gas collected by displacement of water occupied 30mL at 24 C on a day when the barometric pressure was 736t

shusha [124]

Answer:

$v_2=6,48*10^{-4}L$

Explanation:

From the question we are told that:

Volume of hydrogen $V_1=30mL=>30*10^{-3}$

Temperature $T_1=24C=>24+273=>297k$

Pressure of water $P_1=22.4torr=>\frac{22.4}{760}=0.0295atm$

Let

STP(Standard Temperature and pressure)

$T_2=273K$

$P_2=1atm$

Generally the equation for ideal gas is mathematically given by

$\frac{p_1V_1}{T_1}=\frac{P_2V_2}{T_2}$

Therefore

$v_2=\frac{P_1v_1T_2}{T_1P_2}$

$v_2=\frac{0.0295*30*10^{-3}*273}{297*1}$

$v_2=6.48*10^{-4}L$ (at STP(Standard Temperature and pressure))

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