PdV + VdP = n(Cp – Cv)dT

PdV + VdP = n(Cp – Cv)dT

 

---------------------------------------------------

 

PV = nRT

PdV + VdP = nRdT

Cp – Cv = R

PdV + VdP = n(Cp – Cv)dT

 

[Blogger 블로그스팟]

[ https://ywpop.blogspot.com/2023/11/pdv-vdp-ncp-cvdt.html ]

 

[키워드] product rule 기준

 

 

 

 

 

mixture of H2 and O2 gases or water

 

 

수소 기체와 산소 기체는

물을 형성하기 위하여 격렬하게 반응한다.

어느 것이 더 낮은 에너지인가?

수소와 산소의 혼합물 혹은 물 중 선택하고

그 이유를 설명하라.

 

 

Hydrogen gas and oxygen gas

react violently to form water.

Which is lower in energy:

a mixture of hydrogen and oxygen gases or water?

Explain.

 

---------------------------------------------------

 

답: 생성물인 물(water)

 

[Blogger 블로그스팟]

[ https://ywpop.blogspot.com/2023/11/mixture-of-h2-and-o2-gases-or-water.html ]

 

[키워드] 발열반응 기준

 

 

300x250

 

 

PCl3(g) + Cl2(g) ⇌ PCl5(g) Kc = 1.67 at 500. K

 

 

다음 반응의 Kp를 구하라.

PCl3(g) + Cl2(g) ⇌ PCl5(g) ... Kc = 1.67 (500. K에서)

 

 

Calculate Kp for the following reaction:

PCl3(g) + Cl2(g) ⇌ PCl5(g) ... Kc = 1.67 (at 500. K)

 

---------------------------------------------------

 

답: Kp = 0.0407

 

[Blogger 블로그스팟]

[ https://ywpop.blogspot.com/2023/11/pcl3g-cl2g-pcl5g-kc-167-at-500-k.html ]

 

[키워드] Kp Kc 관계 기준, Kc Kp 관계 기준

 

 

 

 

 

CH3CO2Na 0.150 mol 0.500 m gram

CH3CO2Na 0.150 mol 0.500 m mass

 

 

아세트산 소듐(CH3CO2Na) 0.150 mol을 얻기 위해서는

0.500 m 아세트산 소듐 수용액 몇 g이 필요한가?

 

 

What mass (in grams) of a 0.500 molal solution

of sodium acetate in water

would you use to obtain 0.150 mol sodium acetate?

 

---------------------------------------------------

 

답: 312 g

 

[Blogger 블로그스팟]

[ https://ywpop.blogspot.com/2023/11/ch3co2na-0150-mol-0500-m-gram.html ]

 

[키워드] 몰랄농도 용액 기준

 

 

 

 

 

de Broglie wavelength electron velocity 5520 km/s

 

 

Find the de Broglie wavelength (in nm) associated with an electron that is moving with a velocity of 5520 km/s. The electron rest mass is 9.11×10^(-31) kg.

 

Note, electrons having this speed would need to be treated as waves in atoms because the wavelength is on the order of the size of atoms.

 

---------------------------------------------------

 

답: 0.132 nm

 

[Blogger 블로그스팟]

[ https://ywpop.blogspot.com/2023/11/de-broglie-wavelength-electron-velocity.html ]

 

[키워드] de Broglie 기준, 드브로이 기준