2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov tshuaj uas muaj qhov kub siab tshaj plaws yog Helium thiab cov khoom uas muaj qhov kub siab tshaj plaws yog Tungsten.
Cov hlau twg muaj qhov kub thiab txias tshaj plaws?
Ntawm tag nrho cov hlau hauv daim ntawv ntshiab, tungsten muaj qhov siab tshaj plaws melting point (3, 422 ° C, 6, 192 ° F), qis tshaj vapor siab (ntawm qhov kub siab tshaj 1., 650 ° C, 3, 000 ° F), thiab lub zog tensile siab tshaj.
Qhov twg muaj qhov kub siab tshaj plaws?
Carbon muaj qhov kub siab tshaj plaws ntawm 3823 K (3550 C) thiab Rhenium muaj qhov kub siab tshaj plaws ntawm 5870 K (5594 C).
3 yam twg muaj qhov kub siab tshaj plaws?
npog taw tes
- H hydrogen (H2) siv. 20.271 K. -252.879 °C. -423.182 ° F. WebEl. 20.28 K. …
- Nws helium. siv. 4.222 K. -268.928 °C. -452.07 ° F. WebEl. 4.22 K. …
- Lithium. siv. 1603 K. 1330 ° C. 2426 ° F. WebEl. 1615 K. …
- Beryllium. siv. 2742 K. 2469 ° C. 4476 ° F. WebEl. 2742 K. …
- B boron. siv. 4200 K. 3927 ° C. 7101 ° F. WebEl. …
- C carbon (graphite)
Qhov twg tsis yog hlau muaj qhov kub siab tshaj plaws?
Graphite, ib daim ntawv ntawm cov pa roj carbon (tsis yog hlau), muaj qhov kub hnyiab thiab muaj nyob rau hauv lub xeev ntawm chav tsev kub. Nws kuj yog ib tug zoo conductor ntawm hluav taws xob.
Pom zoo:
Thaum twg qhov kub ntawm qhov siab tshaj plaws thiab qis tshaj?
Qhov kub tshaj plaws uas tau sau tseg hauv ntiaj teb yog 136 Fahrenheit (58 Celsius) hauv Libyan suab puam. Qhov ntsuas kub tshaj plaws uas tau ntsuas yog -126 Fahrenheit (-88 Celsius) ntawm Vostok Chaw Nres Tsheb hauv Antarctica. Thaum twg qhov kub ntawm qhov qis tshaj?
Qhov twg tag nrho cov nqi hluav taws xob nyob ntawm qhov kev siv nyiaj siab tshaj plaws yog qhov twg?
marginal utility is zero. Tag nrho cov nqi hluav taws xob yog siab tshaj thaum marginal utility yog xoom. Qhov no yog vim muaj ntau txoj cai ntawm kev txo qis marginal utility uas hais tias tus neeg siv khoom noj ntau thiab ntau qhov zoo, qhov ntxiv rau tag nrho cov nqi hluav taws xob poob.
Puas yog cov hnub qub uas ze tshaj plaws kuj yog cov hnub qub ci tshaj plaws?
Lub hnub qub nyob ze tshaj plaws rau lub ntiaj teb yog nyob rau hauv Alpha Centauri triple-star system, kwv yees li 4.37 lub xyoo teeb. … Sirius A yog lub hnub qub ci ntsa iab tshaj plaws hauv lub ntiaj teb hmo ntuj, vim nws qhov ci ntsa iab thiab nws nyob ze rau peb.
Cov tshuaj twg muaj qhov kub siab tshaj plaws?
Dej muaj peev xwm kub tshaj plaws ntawm cov kua. Cov cua kub tshwj xeeb txhais tau hais tias qhov kub ntawm ib gram ntawm cov khoom yuav tsum nqus los yog poob kom hloov nws qhov kub ntawm ib degree Celsius. Rau dej, tus nqi no yog ib calorie, lossis 4.
Puas muaj qhov kub siab tshaj plaws?
Cov tshuaj uas muaj qhov kub siab tshaj plaws yog Helium thiab cov khoom uas muaj qhov kub siab tshaj plaws yog Tungsten. Kev sib koom ua ke siv rau qhov melting point yog Celsius (C). Nyem qhov no: hloov Celsius rau Fahrenheit lossis Kelvin.
