Which will have the higher vapor pressure at a given temperature: NH3 or PH3? Explain. If liquid A boils at a lower temperature than liquid B then: a) Liquid A has stronger intermolecular forces. b) Liquid A has
It's inside these hidden coils that liquid coolant comes to a boil. What makes the coolant boil? The secret is in the relationship between pressure and boiling point. When pressure changes, so does the temperature at which a substance comes to a boil. ...
Melting point is defined as the temperature at which a substance undergoes a transformation of the state from solid to liquid on the addition of heat. This transformation is called melting or fusion. During melting, the temperature of the substance remains constant (equal to the melting point)....
To determine which compound among hydrogen chloride (HCl), hydrogen fluoride (HF), hydrogen iodide (HI), and hydrogen bromide (HBr) boils at the highest temperature, we will analyze the intermolecular forces present in each compound. 1. Understanding Boiling Point: The boiling point of a subs...
It's a silvery substance that's liquid at room temperature, and it's naturally occurring. Some estimates put the amount of mercury emissions from natural activities, like volcanic eruptions and the wearing away of rocks, at 2,100 tons annually [source: UDEQ]. While mercury emissions are ...
Absolute Temperature:The absolute temperature of an object is its temperature on a scale relative to a zero point defined by the Third Law of Thermodynamics. The unit of this scale is the Kelvin unit. A temperature measurement in the Celsius scale can be converted to the absolute temperature ...
What is the name of the temperature and pressure conditions at which water can be in the solid, liquid and gas phases simultaneously? What is the air pressure in a place where water boils at 70 C? At what temperature does water boil at the top of Mount Everest?
Why does the temperature of boiling water remain the same as long as the heating and boiling continue?Phase TransitionIn thermodynamics, a phase transition is the change of the position of a certain amount of matter in the phase diagram. Most of the time, ...
n 1 temperature at which a liquid begins to boil 沸点. =>App 5 见附录 5. 2 (infml 口) condition or state of great excitement 极度兴奋: The match has reached boiling-point. 比赛已进入高潮. boiler / 5bRIlE(r); `bRIlL/ n 1 metal container in which water is heated, eg to produce ...
Write down the body temperature of a healthy person. 01:19 What do you understand by thermal expansion of a substance ? 01:19 Name two substances which expand on heating. 01:14 Why do telephone wires sag in summer ? 01:05 Iron rims are heated before they are fixed on the wooden wheels...