Hloov cov nplai kub (Celsius nplai Fahrenheit nplai Kelvin)

9 Hloov cov nplai kub (Celsius nplai Fahrenheit nplai Kelvin)

1. 50 ^° C = ….. ^° F ?

tshuaj

Ntawm qhov siab ntawm huab cua ib txwm muaj , qhov chaw khov ntawm dej yog 0 ^o C ntawm qhov ntsuas Celsius thiab 32 ^o F ntawm qhov ntsuas Fahrenheit. Ntawm qhov siab ntawm huab cua ib txwm muaj, qhov chaw npau ntawm dej yog 100 ^o C ntawm qhov ntsuas Celsius thiab 212 ^o F ntawm qhov ntsuas Fahrenheit.

0 ^o C = 32 ^o F thiab 1 00 ^o C = 212 ^o F. Kev hloov ntawm 5 Co ⁼ kev hloov ntawm 9 ^F.

Rau qhov ntsuas Celsius, qhov nrug ntawm 0 ^o C thiab 100 ^o C muab faib ua 100 qhov sib npaug. Rau qhov ntsuas Fahrenheit, qhov nrug ntawm 0 ^o C thiab 100 ^o C muab faib ua 180 qhov sib npaug.

ToF = (180/100) ^ToC + ³²

ToF = (9/5) ^ToC + ³²

ToF = (9/5) 50 + ³²

ToF = (9) 10 ⁺ 32

ToF = 90 ⁺ 32

ToF = ¹²²

50 ^oC = 122 ^oF

[irp]

2. 86 ^° F = ….. ^° C ?

tshuaj

ToC ⁼ (100/180)(ToF ^– 32)

ToC ⁼ (5/9)(ToF ^– 32)

ToC = (5/9)(86 – 32 ⁾

ToC = (5/9)(54 ⁾

ToC = (5)(6 ⁾

ToC = ³⁰

86 ^o F = 30 ^o C

3. 50 ^oC = ….. K ?

tshuaj

T = ToC ⁺ 273

T = 50 + 273

TXL = 323

50 ^oC = 323 K

[irp]

4. 212 ^o F = ….. K ?

tshuaj

ToC ⁼ (100/180)(ToF ^– 32)

ToC ⁼ (5/9)(ToF ^– 32)

ToC = (5/9)(212 – 32 ⁾

ToC = (5/9)(180 ⁾

ToC = (5)(20 ⁾

ToC = ¹⁰⁰

212 ^° F = 100 ^° C + 273

212 ^o F = 373 K

 

5. ^xoC = ^xoF​

x = ….. ?

tshuaj

1: Hloov Celsius nplai rau Fahrenheit nplai

2: Hloov Fahrenheit mus rau Celsius

[irp]

6. 122°F = ….. Celsius

tshuaj

Qhov kev hloov pauv ntawm ob qhov ntsuas kub tuaj yeem sau ua:

TC ₌ 5/9 (TF _– 32)

TC = Kub hauv Celsius, TF _{= kub} hauv Fahrenheit

Qhov kub hauv Celsius:

TC = _5/9 (122 – 32) = TC ₌ 5/9 (90) = 5 (10)

TC = 50 ^oC_​

7. Daim duab hauv qab no qhia txog kev ntsuas kub ntawm cov kua dej nrog lub ntsuas kub Fahrenheit! Yog tias ntsuas qhov kub ntawm cov kua dej siv lub ntsuas kub Celsius, ces qhov kub ntawm cov kua dej yog dab tsi?

Paub:

Fahrenheit nplai (T _F ) = 95 ^o F

Xav tau: Celsius nplai

Tshuaj:

Ntawm lub siab ntawm 1 atm, qhov chaw khov ntawm dej yog 0 ° C thaum lub Fahrenheit nplai yog 32 ^o F. Ntawm qhov tod tes, qhov chaw npau ntawm dej rau lub Celsius nplai yog 100 ^o C thaum lub Fahrenheit nplai yog 212 ^o F.

Ntawm qhov ntsuas Celsius, ntawm 0 ° C thiab 100 ° C muaj 100 ° thaum ntawm qhov ntsuas Fahrenheit ntawm 32 ° F thiab 212 ° F muaj 180 °.

TC ₌ 100/180 (TF _– 32)

TC ₌ 5/9 (TF _– 32)

TC ₌ 5/9 ( 95 – 32 )

TC ₌ 5/9 ( 63 )

TC = _315/9

TC ₌ 35 ^o C

8. Raws li daim duab hauv qab no, txiav txim siab qhov kub P ntawm lub ntsuas kub Celsius.

tshuaj

T_C = 100/180 (T_F - 32)

TC ₌ 5/9 (TF _– 32)

TC = _5/9 (104 – 32)

TC ₌ 5/9 (72)

TC = _360/9

TC = 40 ^oC_​

9. Yog tias qhov kub ntawm Celsius nplai raws li qhia hauv daim duab hauv qab no, txiav txim siab qhov kub ntawm Fahrenheit nplai raws li qhia hauv daim duab hauv qab no.

Tshuaj:

T^oF = (180/100) T^oC + 32

ToF = (9/5) ^ToC + ³²

ToF = (9/5) 60 + ³²

ToF = (9) 12 ⁺ 32

ToF = 108 ⁺ 32

ToF = ¹⁴⁰

1. Hloov cov nplai kub
2. Kev nthuav dav ncaj
3. Kev nthuav dav ntawm thaj chaw
4. Kev nthuav dav ntawm ntim
5. Thaum tshav kub kub
6. Kev sib npaug ntawm cua sov
7. Cov cua sov tshwj xeeb thiab lub peev xwm cua sov
8. Kub latent, kub ntawm fusion, kub ntawm vaporization
9. Kev txuag hluav taws xob rau kev hloov pauv cua sov