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[主观题]

A liquid is vaporized at it.s boiling point. Predict the signs of W, Q, △H, △S and △G. Explain your

A liquid is vaporized at it.s boiling point. Predict the signs of W, Q, △H, △S and △G.

Explain your answers.

答案
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更多“A liquid is vaporized at it.s boiling point. Predict the signs of W, Q, △H, △S and △G. Explain your”相关的问题

第1题

液体制剂(liquid pharmaceutical preparations)

液体制剂(liquid pharmaceutical preparations)

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第2题

FPLC(fast protein liquid chromatography)。

FPLC(fast protein liquid chromatography)。

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第3题

A.currentB.liquidC.airD.poison

A.current

B.liquid

C.air

D.poison

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第4题

A petroleum liquid has a flash point of 85°F. This is a grade ______.A.B flammable liquidB

A petroleum liquid has a flash point of 85°F. This is a grade ______.

A.B flammable liquid

B.C flammable liquid

C.D combustible liquid

D.E combustible liquid

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第5题

Glass-ionomer cement liquid is()A.aqueous silicon dioxideB.a combination ofeugenol and

Glass-ionomer cement liquid is()

A.aqueous silicon dioxide

B.a combination ofeugenol and phosphoric acid

C.a true natural colloidal liquid

D.an aqueous solution of polymers and copolymers of acrylic acid

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第6题

When a liquid wets a solid completely,the contact angle between the liquid and the solid i
s()

A.0°

B.45°

C.90°

D.135°

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第7题

When heated, water changes into().

A.solid

B.vapour

C.liquid

D.air

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第8题

What is the best title for this passage7A.How to Heat WaterB.Is It a Solid, Liquid or Gas.

What is the best title for this passage7

A.How to Heat Water

B.Is It a Solid, Liquid or Gas.?

C.Density and Weight

D.Cooking with Water

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第9题

Glass ionomer cements are composed of()A.zinc oxide powder and polycarboxylicB.zinc ox

Glass ionomer cements are composed of()

A.zinc oxide powder and polycarboxylic

B.zinc oxide powder and phosphoric acid liquid

C.aluminosilicate powder and phosphoric acid liquid

D.aluminosilicate powder and polycarboxylic liquid

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第10题

Before adhesion can take place between liquid and solid,it is essential that the liquid su
rface()

A.provides some mechanical interlocking with the solid

B.exhibits a large contact angle with the solid

C.enters into some form. ofchemieal reaction with the solid

D.exhibits a small contact angle with the solid

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第11题

Evaporation rates of hydrocarbon liquid from horizontal surfaces are approximately given by Where

Evaporation rates of hydrocarbon liquid from horizontal surfaces are approximately given by

Where p is vapor pressure of the liquid and P is the atmospheric pressure. We have spilled a layer of lubricating oil on a metal drip pan in our garage. It forms a layer 1 mm thick. Its density is 1g/cm3and its molecular weight is 400 g/mol. Its vapor pressure is approximately 10-7torr at 20℃. Estimate how long it will take all of this motor oil to evaporate at 20℃.

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