¡GoConqr estrena diseño! Cuéntanos qué te parece.

Regístrate gratis

Test

Week 7 - Phase Change Capability

Usuario eliminado 8 preguntas Actualizado el 3 feb 2020

Hacer el test

Este test tiene tiempo límite, así que se abre en el reproductor de siempre.

Preguntas del test (8)

  1. 1[blank_start]Specific[blank_end] [blank_start]heat[blank_end] is similar to heat capacitance, but is a specific number. The specific heat tells you how much energy one must put in per unit mass in order to raise the temperature 1 C.

    Answer is two words.
    1. ASpecific
    2. Bheat
  2. 2Which of the following processes indicate energy being released to the environment?
    1. Asolid to gas
    2. Bsolid to liquid
    3. Cliquid to solid
    4. Dgas to solid
    5. Eliquid to gas
    6. Fgas to liquid
  3. 3John wishes to heat a cup of water to make some ramen for lunch. His insulated cup holds 200 g of water at 20 C. He has an immersion heater rated at 1000 W (1000 J/s) to heat the water.
    How many joules of heat are required to heat the water to 100 C?

    Answer to 2 SF.

    E = [blank_start]67,000[blank_end] Joules
    1. A67,000
  4. 4During a phase change, [blank_start]energy[blank_end] may be added or removed from a system but the [blank_start]temperature[blank_end] will not change.
    1. Aenergy
    2. Btemperature
  5. 5Which of the following could be defined as the latent heat of fusion:
    1. AThe energy required to transition one unit of a substance from solid to liquid
    2. BThe energy liberated when one unit of a substance transitions from liquid to solid
    3. CThe energy required to transition one unit of a substance from liquid to vapor
    4. DThe energy liberated when one unit of a substance transitions from vapor to liquid
  6. 6The process of changing phase on a phase change, (T vs E) diagram is represented by:
    1. AA horizontal line
    2. BA vertical line
    3. CA positive sloping line
    4. Dnegative sloping line
  7. 7Water is rare in that when it cools down, the structure of the molecules:
    1. ASpread out
    2. BMove faster
    3. CSlow down
    4. DExpand
  8. 8Which of the following would be considered 'phases'?
    1. ASolid
    2. BLiquid
    3. CGas
    4. DSublimation
    5. EMelting
    6. FFreezing
    7. GCondensation

Información

Descripción
El usuario ha eliminado su información de asignaturas Test sobre Week 7 - Phase Change Capability, creado por Usuario eliminado el 28/01/2020.
Autor
Usuario eliminado
Idioma
English
Visitas
12
Historial
Creado el 28 ene 2020 · actualizado el 3 feb 2020
Valoración
Aún sin valoraciones
Valora este test
Valora este test

Escríbenos

¿Sobre qué es tu mensaje?

¿Qué te parece el nuevo diseño?

¿Te gusta?